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(NoModeL) J. N. WAKE. LEATHER CUTTING MACHINE.

Patented Jul 18, 1882.

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UNrrEn STATES PATENT LEATHER-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 261,188, dated July 18,1882.

' Application filed April 21, 1882. (No model.)

To all whom 'it'may concern:

Be it known that 1, JOHN N. WAKE, of the city and county of Providence,and State of Rhode Island, have invented a new and useful Improvement inMachines for Outtin g Leather and other Materials into Strips; and Idohereby declare that the following specification, taken in connectionwith the accompanying drawings, forming a part of the same, is a full,clear, and exact description thereof.

My invention relates to a machine which is composed of a frame, a pairof feed rolls mounted therein, and provided with peripherical grooves,and a series of knives located in said grooves for the purpose ofcuttingleather, cloth, paper, &c., into strips.

My improvement consists in providing the frame of the machine with aside opening to allow of the free passage of material wider than themachine, in order that strips may be cut from the side of the material;in arranging the cutting-edges of the knives at an inclination to theplane in which the material is fed, thereby insuring a cleaner cut andrequiring less power to drive the machine than when the cutting-edgesare placed at right angles to said plane, and in providing the machinewith an adjustable gage to govern the width of the strip cut from theedge of the material.

Referring to the drawings, Figure l represents in front elevation amachine embodying my improvement. Fig. 2 shows the same in rearelevation. Fig. 3 represents a vertical section of the machine. Fig. 4shows a piece of material partially cut into strips.

A is the frame of the machine, which is adapted in any preferred mannerto be attached to a bench orother object. In this frame is journaled afeed-roll, B, the shaft of which is provided with a crank, O, or othermeans for giving rotation to the roll. Located imme diately above theroll B is a fellow feed-roll, B, the shaft 2) of which passes throughslots a a in the frame, as shown in Fig. 1, so that said roll may havevertical adjustment in the frame, in order that different thicknesses ofmaterials may be fed. For the purpose of this adjustment the shaftb maybejournaled in a rigid yoke, D, which can be raised and lowered by athumb-screw, d. I prefer, however, to make the yoke D a spring, in orderthat the roll B may engage the material to be cut with a yieldingpressure, so that, should there be any variation in thickness, thematerial will be more readily fed than if the yoke D were rigid. Theroll B may be rigidly secured to its shaft; but I prefer to mount itloosely thereon, and provide the shaft near its ends with periphericalgrooves b and to bifurcate the ends of the spring-yoke, and arrange saidends to fork the grooves in the shaft, as shown in i Fig. 2, therebyallowing the parts to be more easily assembled. The peripheries of therolls B B, which may be smoothed or roughened, are provided with aseries of grooves, 11 preferably located at equal distances apart, andin these grooves the cutting ends of the knives E are arranged, as shownin Fig. 3, with their cutting-edges inclined to the plane in which thematerial is fed, thereby securing a cleaner cut and requiring lessexpenditure of power than when said edges are placed at right angles tosaid plane. The knives are detachably secured to the frame of themachine by setscrews 6, and the cutting ends are located in or slightlyin the rear of a vertical plane passing through the axis of the rolls.The rolls may also be provided with other grooves, I), located betweenthe grooves b, so as to give a greater range to the widths of the stripscut by the machine, which is also preferably supplied with an adjustablegage, F, to govern the width of the side strip.

As shown in the drawings, the knives are arranged to out six stripsone-fourth of an inch in width; but by rearranging the knives stripsvarying from an eighth of an inch to one and a half inch may be cut, andthe number of strips may be increased by extending the rolls.

As shown in Figs. 1 and 2, one side of the frame A is left open, so thatmaterial of any width may be fed through the machine and strips be cutfrom one of its sides.

It preferred, the rolls B B or their shafts may be geared together, sothat the roll B will be positively driven.

In place of the rolls being solid and having peripherical grooves turnedtherein, they may each be composed of a series of feeding-disks of equaldiameters and of the same or varying widths, separated from each otherby washers of less diameter, and all clamped upon their respectiveshafts by screw-nuts in a well-known manner. By this construction astill greater variety in the widths of strips may be obtained.

l/Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination ofa frame, a pair of feedrolls mounted therein,adjustable with relation to each other, and composed of a series offeedin g-sections which are separated at the circumference by annularspaces, with their cuttingedges inclined to the plane in which thematerial is fed, and a series of knives secured to the frame andentering said spaces, substantially as and for the purposes specified.

2. The combination ofa frame having a side opening, as described, a pairof feed rolls mounted therein, adjustable with relation to cumf'erenceby annular spaces, and a series of 20 vknives secured to the frame andentering said spaces, substantially as and for the purposes specified.

3. The combination of the frame A, having a side opening, B, yoke D,adjusting-screw d, and knives E, with their cutting-ed ges inclined tothe plane in which the material is fed, substantially as described andshown.

JOHN N. WAKE. Witnesses:

EDsoN SALISBURY J ONES, GEo. W. CADY.

as described, the feed-rolls B 25

